/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.eventmesh.registry;

import org.apache.eventmesh.spi.EventMeshExtensionFactory;

import java.util.HashMap;
import java.util.Map;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class RegistryFactory {

    private static final Map<String, RegistryService> META_CACHE = new HashMap<>(16);

    public static RegistryService getInstance(String registryPluginType) {
        return META_CACHE.computeIfAbsent(registryPluginType, RegistryFactory::registryBuilder);
    }

    private static RegistryService registryBuilder(String registryPluginType) {
        RegistryService registryServiceExt = EventMeshExtensionFactory.getExtension(RegistryService.class, registryPluginType);
        if (registryServiceExt == null) {
            String errorMsg = "can't load the registry plugin, please check.";
            log.error(errorMsg);
            throw new RuntimeException(errorMsg);
        }
        log.info("build registry plugin [{}] by type [{}] success", registryServiceExt.getClass().getSimpleName(),
            registryPluginType);
        return registryServiceExt;
    }
}
